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    METHOD FOR PURIFYING FLUORINE COMPOUND
    71.
    发明公开
    METHOD FOR PURIFYING FLUORINE COMPOUND 审中-公开
    VERFAHREN ZUR REINIGUNG EINER FLUORVERBINDUNG

    公开(公告)号：EP2075229A1

    公开(公告)日：2009-07-01

    申请号：EP08828553.1

    申请日：2008-08-29

    申请人： Stella Chemifa Corporation

    发明人： WAKI, Masahide ,  SAKAI, Daisuke ,  SAKURAI, Toshihisa

    IPC分类号： C01B9/08 ,  C07C209/84 ,  C07C211/63 ,  C07D233/58

    CPC分类号： C07D233/58 ,  C01B7/195 ,  C01B25/10 ,  C01B35/065 ,  C01F11/22 ,  C01F17/0062 ,  C01P2006/80 ,  C01P2006/82

    摘要： Provided is a process for purifying a fluorine compound capable of yielding a highly pure fluorine compound by removing at least oxygen from a fluorine compound containing an oxygen compound as an impurity. In a process according to the present invention for purifying a fluorine compound, the following is brought into contact with the fluorine compound, which contains an oxygen compound as an impurity, thereby removing at least oxygen: carbonyl fluoride in an amount of a 0.1-fold equivalent or more and a 100-fold equivalent or less of oxygen atoms in the fluorine compound.

    摘要翻译： 提供一种通过从含有作为杂质的氧化合物的氟化合物中除去至少氧来纯化能够产生高纯度氟化合物的氟化合物的方法。 在根据本发明的用于纯化氟化合物的方法中，使下列物质与含有作为杂质的氧化合物的氟化合物接触，从而至少除去氧气：碳氟化物的量为0.1倍 氟化合物中的氧原子当量以上100倍以下。

    PROCESSES FOR THE PURIFICATION AND USE OF 2-CHLORO-1,1,1,2,3,3,3-HEPTAFLUOROPROPANE AND AZEOTROPES THEREOF WITH HF
    79.
    发明公开
    PROCESSES FOR THE PURIFICATION AND USE OF 2-CHLORO-1,1,1,2,3,3,3-HEPTAFLUOROPROPANE AND AZEOTROPES THEREOF WITH HF 有权
    程序进行清洗和2-氯1,1,1,2,3,3,3-七氟丙烷使用和HF共沸物

    公开(公告)号：EP1066230A1

    公开(公告)日：2001-01-10

    申请号：EP99915210.1

    申请日：1999-04-01

    申请人： E.I. DU PONT DE NEMOURS & COMPANY INCORPORATED

    发明人： MILLER, Ralph, Newton ,  RAO, V., N., Mallikarjuna ,  SWEARINGEN, Steven, H.

    IPC分类号： C07C17/38 ,  C07C17/383 ,  C07C19/10 ,  C07C17/23 ,  C07C19/08 ,  C07C21/18 ,  C07C17/20 ,  C01B7/19

    CPC分类号： C07C21/18 ,  C01B7/195 ,  C07C17/206 ,  C07C17/23 ,  C07C17/38 ,  C07C19/08 ,  C07C19/10 ,  Y02P20/582

    摘要： A process is disclosed for the separation of a mixture of HF and CF3CC1FCF3. The process involves placing the mixture in a separation zone at a temperature of from about -30 °C to about 100 °C and at a pressure sufficient to maintain the mixture in the liquid phase, whereby an organic-enriched phase comprising less than 50 mole percent HF is formed as the bottom layer and an HF-enriched phase comprising more than 90 mole percent HF is formed as the top layer. The organic-enriched phase can be withdrawn from the bottom of the separation zone and subjected to distillation in a distillation column to recover essentially pure CF3CC1FCF3. The distillate comprising HF and CF3CC1FCF3 can be removed from the top of the distillation column while essentially pure CF3CC1FCF3 can be recovered from the bottom of the distillation column. The HF-enriched phase can be withdrawn from the top of the separation zone and subjected to distillation in a distillation column. The distillate comprising HF and CF3CC1FCF3 can be removed from the top of the distillation column while essentially pure HF can be recovered from the bottom of the distillation column. If desired, the two distillates can be recycled to the separation zone. Also disclosed are compositions of hydrogen fluoride in combination with an effective amount of CF3CC1FCF3 to form an azeoptrope-like composition with hydrogen fluoride. Included are compositions containing from about 38.4 to 47.9 mole percent CF3CC1FCF3. Also disclosed are processes for producing 1,1,1,2,3,3,3-heptafluoropropane. One process uses a mixture comprising HF and C3CC1FCF3 and is characterized by preparing essentially pure CF3CC1FCF3 as indicated above, and reacting the CF3CC1FCF3 with hydrogen. Another process uses an azeotropic composition as described above, and reacts the CF3CC1FCF3 with hydrogen in the presence of HF. Also disclosed is a process for producing hexafluoropropene. This process is characterized by preparing essentially pure CF3CC1FCF3 as indicated above, and dehalogenating the CF3CC1FCF3.

    Verfahren zum Herstellen reiner Flusssäure
    80.
    发明公开
    Verfahren zum Herstellen reiner Flusssäure 审中-公开
    Verfahren zum Herstellen reerFlusssäure

    公开(公告)号：EP1028087A1

    公开(公告)日：2000-08-16

    申请号：EP00101642.7

    申请日：2000-01-31

    申请人： BAYER AG

    发明人： Lailach, G-nther, Dr.

    IPC分类号： C01B7/19 ,  B01J19/02

    CPC分类号： C01B7/196 ,  B01J19/02 ,  B01J2219/0245 ,  C01B7/195

    摘要： Das neue Verfahren zur Herstellung von reiner Flusssäure bzw. reinem Fluorwasserstoff ist dadurch gekennzeichnet, dass nach destillativer/oxidativer Vorbehandlung eine zweistufige Wäsche mit 65 bis 90 gew.-%iger Flusssäure bzw. 90 bis 100 gew.-%iger Flusssäure durchgeführt wird, wobei durch Einspeisen von Wasser in den ersten oder zweiten Waschkreislauf und Ausspeisen einer entsprechenden Menge Flusssäure Verunreinigungen entfernt werden.

    摘要翻译： 在通过蒸馏掉低沸点杂质和氧化砷-III化合物来生产含有NOTLESS 97重量％HF的工业HF的纯氢氟酸或氟化氢（HF），并通过在一个中加入少量的水除去剩余的杂质 洗涤循环并除去相应量的65-90重量％HF。 在由含有NOTLESS 97重量％HF的工业HF生产纯氢氟酸或氟化氢（HF）时：（a）蒸除低沸点杂质; （b）将砷-III（As-III）化合物氧化成As-V化合物; 如果需要，（c）通过蒸馏分离高沸点杂质，所洗涤的HF被洗涤两个阶段：（1）65-90重量％的HF; 和（2）90-100重量％的HF，冷却至10-30℃，并且通过在第一或第二洗涤循环中加入少量的水来除去仍然存在的杂质，并除去相应量的65-90 重量％HF。